These are must know Java interview FAQs. If you don’t get these Java interview questions right, you will not be getting an offer.
Q1. What is the difference between “==” and …
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00: Top 50+ Core Java interview questions answered – Q11 to Q23
The focus is on Java OOP interview questions and answers. Q11. What is the difference between constructors and other regular methods? A11. Constructors must have the same name as the class …
00: Top 50+ Core Java interview questions answered – Q24 to Q36
Focus is on Java classes, interfaces and generics the interview questions and answers style. Java classes and interfaces are the building blocks. Q24. What happens when a parent and a child …
00: Top 50+ Core Java interview questions answered – Q37 to Q42
As a Java developer, you may not need to know how the JVM works, but the most important topic that you must know is Java Garbage Collection. How the Garbage Collection …
00: Top 50+ Core Java Interview questions answered – Q43 to Q54
Q43. What can you tell about the performance of a HashMap compared to a TreeMap? Which one would you prefer? A43. A balanced tree does have O (log n) performance. The …
01: 12 Maven interview Questions & Answers
Q1. What is the difference between snapshot versions and release versions? A1. The term “SNAPSHOT” means the build is a snapshot of your code at a given time, which means downloading …
01: 12 Web basics every Java web developer must know – Part 1
Q1. HTTP is a stateless protocol, so how do you maintain state? How do you store user data between requests?
A1. This is a commonly asked interview question. The “http protocol …
01: 19 Java 8 Functional Programming FAQs
Good handle on Java OOP concepts and FP concepts are very important NOT only from writing quality code perspective, but also from job interviews perspective to be able to do well …
01: 7 must know Java Web Services Interview Q&As
As an enterprise Java developer, you will be spending more time integrating systems via Java web services & messaging. Java Web Services interview questions are must know for the Java …
01: 7+ Java architectural patterns interview Q&As – Part 1
One of the very frequently asked open-ended interview questions for anyone experienced is:
Can you describe the high-level architecture of a recent application you had worked on?
01: AWS Q&As on VPC, Subnets, Availability Zones, VPN, Route tables, NACLs & Security Groups
The above diagram addresses many of the questions that follow. Q1. What is a VPC in AWS? A1. A virtual private cloud (VPC) is a virtual network dedicated to your AWS …
01: Q01 – Q07 Spring core interview Q&As
Spring interview questions are very common for the Java programmer jobs.
Q1. What do you understand by the terms Dependency Inversion Principle (DIP), Dependency Injection (DI) and …
01: Q07 – Q12 Java Micro & Web services Interview Q&As
Covers “Debugging & troubleshooting a complex distributed system” & “Low latency between fine-grained services”, which are popular interview questions. Extends Java Web Services Basics Interview Q&As – Q01 – Q06. Q7. …
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